When comparing Hackr.io vs tests4geeks, the Slant community recommends Hackr.io for most people. In the question“What are the best resources to learn AngularJS?”Hackr.io is ranked 14th while tests4geeks is ranked 25th. The most important reason people chose Hackr.io is:

Instead of getting a recommendation from a single dev, you get recommendation from the entire programming community.